Ventilator



Jan. 3, 1928.

A. L. RIKER VENTILATOR File d Dec. 19, 1924 7 A TTORNEY.

Patented Jan. 3, 1928.

ANDREW L. BIKER, OF FAIR-FIELD, CONNECTICUT.

VENTILATOR.

Application filed December 'Fhis invention relates to a ventilator, usetul for many purposes, but more especially adapted for use as a closure for transoms, doorways, windows, panels, or the l1ke.

An object of the invention is to provide a ventilator of the general nature of those described and illustrated in my Patents, No. 1,519,553, granted December 16, 1924, and No. 1,529,037, granted March 10,1925; and presenting advantageous characteristics and features of construction which are improvements over the disclosures of said patents.

A further and more specific object 1s to provide a ventilator consisting of a frame having a plurality oflouvers pivoted therein to turn on their axes and so constructed-and mounted that when swung lItOIlB'dlI'BCtlOIl they will completely and positively close the space within the frame, and when swung in the other direction will leave passage ways of the maximum dimensions possible between the respective louvers without opening" a direct line of vision through the frame.

A still further object is to provide a ventilator as just stated and having depend- 1. able operating mechanism for manipulating all of the louvers to open or closed positions, the operating mechanism including a practical arrangement limiting the degree to whlc'h the'louvers can be turned on their pivots.

lVith the above and other objects in view, the invention comprises the construction, arrangement and combination of parts as now to be fully described and as h'erelnafter to be specifically claimed, it being understood that the disclosure herein is merely illustra tive of the principles and meant in no way to limit the spirit of the invention, changes in details of construction and arrangement of parts being permissible so long as within the scope of the appended claims.

In the accompanying drawing forming a part of this specification,

Fig. 1 is an elevational view of the novel ventilator, showing the louvers in open position;

Fig. 2 is an enlarged horizontal, longitudina-l sectional View, taken as on line 2-2 in Fig. 1, looking in the direction of the a rrows; 7

Fig. 3 is a similar sectional view, but disclosing the louver-s in closed position; v

Fig. 4 is a vertical sectional view, taken as on line 44 in Fig. 2, looking in the direction of the arrows;

Fig. 5 is an enlarged sectional view of one Fig. 8

19, 1924. Serial No. 756,912.

end portion of the ventilator, detailing the mechanism for operating the louvers;

Fig. 6 is a sectional view, taken as on line 6-6 in Fig. 5, looking in the direction of the arrows; and I Figs. 7 and 8 are enlarged sectional views, Fig. 7 showing a fragment of a louver and the upper frame member in which the louver is mounted, and Fig. 8 showing a fragment of a louver and the lower frame member in which the louver is mounted, said showing also the operating bar and its manner of association with the louvers, both views being taken as on line 8-8 in F 2, looking in the direction of the arrows.

The ventilator of this invention is constituted by a frame of rectangular configuration, spaced apart louvers pivotally mounted therein. end louvers fixed in the frame, and m-echanism' for swinging the pivoted louvers on their pivots to open or close the space within the frame.

The frame may be composed of sheet metal, and may consist of oppositely disposed membersdenoted 1O, 11 and 12, 13, resoectively. All of the members of the frame may be plates having flanges upon their opposite edges, the flanges of the members 10 and 11 being denoted 14 and 15, respectively, and the flanges of the members 12 and 13 being denoted 16 and 17, respectively.

The manner in which the members 10, 11, 12 and 13 are preferably joined is best shown in Figs. 2, 3, 4 and 5, wherein end portions of members 12 and 13 and their flanges 16 and 17 are drawn or oflset inwardly as denoted at 18, and the flanges 14 and of the members 10 and 11 fit snugly over the drawn in or ottset portions 18 to align with the flanges 16 and 17. The connections between the members 10, 11 and 12, 13, respectively, may be each made by means of a rivet 19 passing through said flanges 14 or 15 and through drawn in or effect portions 18, a bushing, 20, extending between the drawn in or ofl'set portions and through which the rivet extends, serving to allow the rivet to clamp the portions 18 and flanges 14 or 15, as the case may be, against each other. By the provision of elongated slots (not shown) in the drawn in or oflset portions or in the flanges themselves, the members can be slightly adjustable with respect to each other, as will be understood. For convenience, I have in the drawing designated all the rivets 19, and all of the bushings 20, the connections between all of the plates desirably being made in the same manner.

Q in the same direction The flanges and their drawn in or offset portions are preferablyperpendicular members 10, 11, 12 and. 13, respectively, and all of the flanges extend inwardly of the frame. The ends of certain of the frame members are desirably contiguous withor closely adjacent to the bodies of other frame members. See 4; I r

The ventilator includes a plurality of spaced apart louvers pivotally mounted therein,'and two end louvers fixedin the frame adjacent the outermost of the pivoted louvers. All of the louvers are preferably composed of sheet metal. As disclosed, they are mounted in the frame to be perpendicular to the members and 11 and parallel with the members 12 and 13, and all of the pivoted louvers are of L-shape.

The pivoted louvers, denoted 21. are spaced at equal distances apart. Each has an ear 22 upon its arm 23 pivoted upon the member '10, and an ear 24 upon this same arm pivoted upon the member 11, the arm 25 of each louver 21 being free of ears. The ears 22 and 24 preferably extend at right-angl s from the planes of the arms 23 of the louvers 21, the ears 22 being situated entirely within the space between the arms 23 and 25, and the ears 24 having extensions 26 projecting beyond said space for a purpose to be explained.

The pivoted louvers are mounted in the members 10 and 11 in the manner best shown in Figs. 2. 3. 7 and 8. That is to say, each ofthe ears 22 is provided with a hole rotatably receiving a metal of the member or plate 10 of the frame. and each of the ears 24 is drawn as "frame and each of the at 28 to rotatably enter an annular flange 29 consisting of upwardly drawn metal of the member or plate 1.1. of the frame. the ivotal points for the louvers being arranged adjacent the opposite ends of the arms 23 thereof, notfar from the midwidths of said arms-as shown.

The ears 24 extend beyond the pivotal points of the arms 23 upon the member 11, as represented at 26 and hereinbefore referred to as extensions of the ears 24. 30 represents an operating bar for manipulating the pivoted louvers. The operatingbar is arranged beneath the extensions 26 of the ears 24 to slide upon the plate 11 of the extensions 26 has metal drawn therefrom and rotatably entering holes 31 at uniform distances apart in the operating bar.

Numerals32 and 33 denote end louvers fixed in'the frame in any suitable manner.

The body portion of louver 32 is preferably arranged contiguous with the rear drawn to the drawn portion 27 of the remove in or offset portions 18 at'the left end of the ventilator, and the body portion of louver 33 is preferably arranged contiguous with rear portions 18 at the right end of said ventilator. The outer side edges, denoted 34 and 35, of said louvers 32, and 33, respectively, desirably engage the inner faces of members or plates 12 and respectively. and the inner edges of said louvers 32 and 3 terminate" within the frame beyond the flanges thereof. The portion, denoted 36, of the louver 02 extending beyond the flanges 16 is disposed obliquely and from rear toward frontof the frame, andthe portion, denoted 37, of the louver 33 extending beyond'the flanges 17 includes a part 38 which is straight projection of the louver 33 and in the plane of its edge 35, and a part 39 at right-angles, approximately, to the part 38 and projecting for a short distance from the rear toward the front of the ventilator. As disclosed, the fixed louvers 32 and 33 are held in position by the rivets 19 and bush ings 20. Additional fastenings means (not shown) could,- however, consist of ears upon said stationary louvers and fixed to the upper and lower members or plates 10- and'l l.

' The mechanismfor moving the operating bar longitudinally to turn vers on their pivotsin a'manner be obvious, "consists of a in the flanges or. their drawn in or '0 portions adjacent a'corner of theventilator and having'a "crank 41 and a manipulating which will handle 42. Near one ofits ends'the operatlng bar is bent to general Ushape as denoted at 43 toreceive the cranln'and the position of that-end' of'the'bar, denoted 44. beyond the spindle, 20, already described, situated directly above and close to the operating bar.

The metal of the flanges may be drawnas denoted at 45 to provide a dependable bearing for the spindle ,and the U-shaped part of the operating bar is preferably arranged about the crank so that the slight forwd and rearward movements of 'the'operatinp; bar when moved longitudinallyto-adjust the louvers impart slight endwise movements to the spindle Evidently, the operating bar will :thus insure the spindle against displacement. The spindlehasua reduce'l. end 46 mounted in a bearing whereby the larger diameter of the spindle can limit rearward movementof the same. Forward movement of the spindle is checked by engagementof theoperatingbar with the front flange of the member 11. Obviously, the position of the spindle in its bearing is thus insured.

In thedrawing Ihave shown the fixed louver 33 as having a longitudinal slot 50 in its lower end to be positioned about the spindle 40. See Fig. 5. The arrangement bling theelements of the ventilator.

the pivoted 'louspindle '40 mounted set;

may be insured by a. bushing The throw of the crank 41 determines the distance the operating bar can move longitudinally, and hence limitsthe degree to which the pivoted louvers can be turned on their pivots.

In assembling the louvers with the frame members 10 and 11, I desirably utilize rivets 47 as shown in- Fig. 7 to first secure the ears 22 to the frame member 10. I then associate ears 24 with the frame member 11 in the manner already set forth and I may utilize rivets 48 as shown in Fig. 8, to insure the relative positions of the ears 24 and the frame member 11.

By drawing the metal of the frame member 11 upwardly to form the annular flanges 29, I provide aspace 49 between the extensions 26 of the ears 24 and the frame member 11 to afford clearance for the longitudinal sliding movements of the operating bar upon the frame member 11. This will be most clear from Fig. 8.

The manner in which the ventilator functions will be clear from the description and drawing. Then the handle 42 is as disclosed in Fig. 2 (at one end of the stroke of the operating bar 30), the pivoted louvers are in wide open position. At this time, the arms 23 and 25 of said pivoted louvers are all at angles of about to the rear and front, respectively, of the frame. The dis tance between each louver and those adjacent it is just insufficient to allow a. direct line of vision through the frame when the pivoted louvers are in wide open position, and the fixed louvers 32 and 33 are at proper distances from the outermost pivoted louvers so that there will be no direct line of vision between outermost louvers and said fixed louvers. By the provision of L-shaped louvers, passage ways of the maximum dimensions possible are procured when the louvers are in open position.

l/Vhen the handle 42 is as disclosed in Fig. 3 (at the opposite end of the stroke of the operating bar), the full length of the outer edge of arm 25 of each pivoted louver, except the left, outermost one, interlaps with the full length of the inner edge of the arm 25 of the louver directly to the left and adjacent it, as indicated at 51. The arm 25 of said left, outermost louver engages the full length of the inner edge of the oblique portion 36 of fixed louver 32, as indicated at 52, while the arm 23 of the right, outermost pivoted louver engages the full length of the adjacent face of the part 39 of the fixed louver 33, as indicated at 53. All of the arms 25, as disclosed, are parallel, or nearly parallel, with the front face of the frame, while the arms 23 are approximately perpendicular to said front face.

While the L-shaped louvers mounted in the manner set forth permit passage ways of maximum dimensions, yet when the ments going to make the ventilator pivoted louvers are closed there is substan tial engagement of the louvers with each other to provide positive closings between all of the pivoted louvers. The rear face of the arm 25 of the left, outermost louver is engaged by-the inner edge of the fixed louver 32' so that the closing here is also positive. The arm 23 of the right, outermost louver engages approximately the full width of the part 39 of the fixed louver 33 so that this closing is likewise positive.

The ventilator as illustrated and described is of very simple construction. The frame consists of but four sheet metal plates rigidly secured to each other. Each pivoted louver with its ears consists of a single piece of sheet metal bent to L-shape and mounted in the frame. Each fixed louver is likewise a single piece of metal. The operating mechanism consists of an operating bar and crank with manipulating handle. The eleare relatively few and the positions of all of the elements are positively insured, no liability whatsoever existing that any element can become dislocated or impaired. Hence, the ventilator is durable, reliable and efficient for a long period of time.

To incorporate the ventilator in its position of use, all that is necessary is to fit the frame into an opening, the flanges of the frame members 10, 11, 12 and 13 serving the purpose of inclosing the ends of all of the louvers and interlapping with the fixed louvers to preserve the advantageous fea tures of the ventilator.

Having thus fully described the what I claim as new and Letters Patent is:

1. As an article of manufacture, a device comprising a rectangular frame consisting of joined metallic channel pieces, pivoted L-shaped metallic louvers having integral ears upon their opposite ends, said ears being mounted in certain channel pieces of said frame between marginal portions of said channel pieces, end fixed metallic louvers associated with certain channel pieces bet-ween marginal flanges thereof, and means for swinging the pivotally mounted louvers upon their pivots to close or to open passageways between the respective louvers, said fixed louvers being supported adjacent a face of said frame, and said means for swinging the pivoted louvers including an operating bar situated adjacent a face of said frame and opposite said fixed louvers, whereby said fixed louvers can offer no interference to manipulations of said operating bar.

2. As an article of manufacture, a device comprising a rectangular frame consisting of joined metallic plates having flanges upon their opposite edges all extending inwardly beyond the body of the frame, certain of invention, desire to secure by said flanges having ofi'set portions fitted louver, and means extending through said Within others of said flanges, l-ouvers bushing, fixed louver, offset portions, and

mounted in certain of said plates and beflanges of a nietallio plate in which said ofi- 1 tween said flanges, there being intermediate set portions are fitted to clamp-said fixed 5 L-shaped louvers all pivotally mounted and louver against the offset portions with which end louvers fixedly mounted, said end it is contiguous-and to clamp said offset porlouvers each being; mounted between the tions and the flanges fitted ahoutsaid oiiset flanges of one of said metallic plates and portions against each other, respectively. 2 contiguous with certain offset portions Signel atBridgeport, in the county of 10 thereof, a bushing extending between each Fairfield, andState of Connecticut, this 18th fixed louver and an ofiset portion of said day of'Deeeinbe1', A. D., 1924. i p one metallic plate spaced from said fixed ANDREW L. BIKER. 

